JPH02101653U - - Google Patents

Info

Publication number
JPH02101653U
JPH02101653U JP1024789U JP1024789U JPH02101653U JP H02101653 U JPH02101653 U JP H02101653U JP 1024789 U JP1024789 U JP 1024789U JP 1024789 U JP1024789 U JP 1024789U JP H02101653 U JPH02101653 U JP H02101653U
Authority
JP
Japan
Prior art keywords
signal
handset
circuit
modulation
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1024789U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1024789U priority Critical patent/JPH02101653U/ja
Publication of JPH02101653U publication Critical patent/JPH02101653U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例のブロツク図、第２
図は従来の一例のブロツク図である。 １……カメラ、２……マイクロホン、３……ケ
ーブル、５……ＡＭ変調回路、８……ＦＭ変調回
路、１１……ミキサ、１８……送信回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 子機と該子機とケーブルで接続された親機とよ
    りなり該子機と該親機との間で映像及び音声によ
    り通話を行なうインターホンの送信回路において
    、 該映像の映像信号を変調信号として変調を行な
    う第１の変調回路と、 該音声の音声信号を変調信号として変調を行な
    う第２の変調回路と、 前記第１の変調回路の出力被変調映像信号と前
    記第２の変調回路の出力被変調音声信号とを混合
    し、一系統のケーブルより出力する混合器とを前
    記子機に具備してなるインターホンの送信回路。
JP1024789U 1989-01-31 1989-01-31 Pending JPH02101653U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1024789U JPH02101653U (ja) 1989-01-31 1989-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1024789U JPH02101653U (ja) 1989-01-31 1989-01-31

Publications (1)

Publication Number Publication Date
JPH02101653U true JPH02101653U (ja) 1990-08-13

Family

ID=31217733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1024789U Pending JPH02101653U (ja) 1989-01-31 1989-01-31

Country Status (1)

Country Link
JP (1) JPH02101653U (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171184A (ja) * 1982-03-31 1983-10-07 Matsushita Electric Works Ltd モニタテレビ付インタ−ホン装置
JPS63300685A (ja) * 1987-05-30 1988-12-07 Sharp Corp 音声・映像信号の多重化伝送方法
JPS6427358A (en) * 1988-07-08 1989-01-30 Aiphone Co Ltd Frequency division multiplex interphone transmission system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171184A (ja) * 1982-03-31 1983-10-07 Matsushita Electric Works Ltd モニタテレビ付インタ−ホン装置
JPS63300685A (ja) * 1987-05-30 1988-12-07 Sharp Corp 音声・映像信号の多重化伝送方法
JPS6427358A (en) * 1988-07-08 1989-01-30 Aiphone Co Ltd Frequency division multiplex interphone transmission system

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